Deciduous is a designation indicating a plant sheds its leaves at the end of the growing season. The term is used primarily in reference to trees and shrubs, in contrast with those that are evergreen.. It is pronounced dih-SIJ-oo-uhs. To remember what deciduous means, try relating it to the word, decadent..
viscosity. n, pl-ties. 1. the state or property of being viscous. 2. (General Physics) physics. a. the extent to which a fluid resists a tendency to flow. b. Also called: absolute viscosity a measure of this resistance, equal to the tangential stress on a liquid undergoing streamline flow divided by its velocity gradient. It is measured in newton seconds per metre squared.
1 Viscosity is another type of bulk property defined as a liquidâs resistance to flow. When the intermolecular forces of attraction are strong within a liquid, there is a larger viscosity. 2  Viscosity can be not only a fluidâs resistance to flow but also a gasâ resistance to flow, change shape or movement. The opposite of viscosity is fluidity which measures the ease of flow while liquids such as motor oil or honey which are âsluggishâ and high in viscosity are known as viscous.